What would you want to see?

If a tooltip were able to popup from hovering ontop of a row in the download, upload, connections, library, etc... what kind of stuff would you want to see?

For the connections, the best I could think of was showing all the headers that the peer sent.

For the library, I'm thinking meta-data information and possibly other stats that wouldn't really fit in the table-format...

For the upload/download... I can't think of much.

Any ideas?

Thanks,
Sam